The calculator cannot account for complex shapes based on a measurement of square footage alone.
How to figure out how many square my roof is.
This is simply 100 square feet of roof.
Enter square footage calculate or enter the square footage of the attic or area to be vented.
Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure.
A square simply refers to a 10 x 10 square of roofing.
Calculate the roof area measure the length and width of the structure at ground level in feet.
Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy.
Using this tool will be very helpful for you in finding out the acreage or the tract of land of your property.
However shingles are packaged in a way that they are light enough for the average person to carry around.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
The answer is the number of roofing squares for the roof.
Convert the area to roofing squares.
In cases where a roof has a complex shape such as in the image to the right measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
It will also give you the perimeter of the shape of the roof.
The first step in a free roofing estimate is measuring the roof dimensions.
It will also give you the square footage of your roof and any other areas that you re wanting to estimate.
For instance if the roof is 1550 square feet then it is 16 squares.
Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator.
Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material.
You will need to express this size in terms of square feet.
To find the squares divide the overall roof area by 100 and then round up.
If your roof is flat or has no more than a 3 in 12 pitch you can calculate its total square footage by simply multiplying the length by the width.
If you have an irregularly shaped building break the structure into several rectangles and measure each separately.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
